Advise on most streetable dual disc clutch?

[rickcdewitt]

Hey guys any of you have experience with the latest dual disc offerings from south bend or others?

When i stand on it going down the road in higher gears with my organic single disc south bend its a toss up as to wether the clutch will slip or hold .its a year old and I've never dumped the clutch

I would like to be able to back a trailer in 2hi?

Thanks!

 

[rickcdewitt]

South bend assures me their organic dual disc is smooth engagement?

And before you berate me on the single disc let me say the truck just keeps growing. Hell today i was looking at a used twin turbo setup and had to tell myself i in no way want to pay for a built motor right now!

If it helps with advise my truck will break the tires loose for 20ft at 50mph if i go around a slight corner to get some body roll with the boost built up? A few buddies are looking into duramaxes after going for a ride

 

[hntngkd]

I had a comp dual ceramic with a sprung hub before the built motor and it was great even when taking off with a 48' trailer. It was a little bouncy backing up with a trailer though. Ive got a sintered iron triple disc now and its definitely not ideal for hauling anything but I still make it work. Not uncommon to haul 15k lbs across the state with it. If you plan on adding power to the truck I would lean towards the ceramic or one of their dual friction material clutches.

 

[rickcdewitt]

Thanks for sharing the advise and experience. Southbend told me to get the dual friction too. I'm just a little leary as the single disc could be "bouncy" backing up too. Maybe a bad clutch from the get go?

 

[rickcdewitt]

My truck has poly engine and trans mounts which made it a lot better but didn't eliminate it

 

[hntngkd]

Ive got merchant mounts in my truck as well, I have heard that adding traction bars helps to prevent it from bouncing but I haven't put them on my truck yet.

 

[rickcdewitt]

I've been thinking about trying the lift leaf pack from my parts truck to get rid of my 3" blocks.that might help a bit. They aren't more thinner leaves so it probably rides rougher though.i think just an add a leaf.

Getting the parts to make some traction bars are on the to do list as well.it'll have to wait until the trans is rebuilt and a clutch gets sorted out though. I had a roll pin fall out of the linkage part with a cup for the shift stub. It was a bit noisy anyway so rebuild time. Thankfully i made it 20 miles home stuck in 4th!

 

[PureHybrid]

Will they build a triple disk with a lighter plate load and organic material?

 

[hntngkd]

Will they build a triple disk with a lighter plate load and organic material?

Im sure they will, mine has a 3600lb plate. I could have got it with a 3200, 3400 or a 3800 as well. The problem with a triple disc is you cant get it with a sprung center hub so you end up with a lot more chatter and bounce when youre trying to let it out slow. There isn't room for the sprung center hubs in a triple disc.

 

[PureHybrid]

Im sure they will, mine has a 3600lb plate. I could have got it with a 3200, 3400 or a 3800 as well. The problem with a triple disc is you cant get it with a sprung center hub so you end up with a lot more chatter and bounce when youre trying to let it out slow. There isn't room for the sprung center hubs in a triple disc.

Ah yes. Solid hubs are not fun

 

[hntngkd]

Ah yes. Solid hubs are not fun

Yeah thats whats in my truck, i can still haul big trailers with it its just a bit more of a hassle.

Sent from my SM-N960U using Tapatalk

 

[zakkb787]

I've been thinking about trying the lift leaf pack from my parts truck to get rid of my 3" blocks.that might help a bit. They aren't more thinner leaves so it probably rides rougher though.i think just an add a leaf.

Getting the parts to make some traction bars are on the to do list as well.it'll have to wait until the trans is rebuilt and a clutch gets sorted out though. I had a roll pin fall out of the linkage part with a cup for the shift stub. It was a bit noisy anyway so rebuild time. Thankfully i made it 20 miles home stuck in 4th!

Dealer makes a mini pack that lifts it around 1 1/2-2” depending on how many leafs you use. Replaces the factory overload and is supposed to ride a lot smoother.

 

[rickcdewitt]

So i chickened out and got the organic dual disc. Whenever the transmission shop gets the zf rebuilt I'll let you guys know how it works out?i must be getting old!when i was younger i would have tried to rebuild it myself and got the dual friction.now i don't want to spill my coffee!

 

[rickcdewitt]

Finally got the zf back with a new gm input shaft,3-4 slider, and bearings/syncros. Ran into a snag putting the clutch in though. There are no dowel pins to locate the pressure plate on the flywheel like my single disc south bend had and every other clutch I've installed? Lots of slop with just the bolts.

Now i wish I'd messed with it when it showed up and found the problem weeks ago.darn i wanted to be testing it out tomorrow!gotta wait til monday to figure it out.oh well

 

[rickcdewitt]

Sorry to be late on the update.i called south bend and they said no dowels on their dual disc so i just centered it as well as i could.
It engages smooth if i hold the brake but the truck shudders taking off most times.south bend told me to use more rpms taking off but its a diesel?i don't need the gas pedal taking off most times.3" blocks and 35's might be part of the problem.there are other symptoms of it needing traction bars. When it gets a new leaf pack without blocks and traction bars I'll update again

 

[Gear Jammer]

I'm running the same clutch with the same size lift and tires, mine shudders on take off also, most of the time it's not much though. If I slip the clutch some taking off it's a lot smoother, but I hate driving a manual that way.

 

[rickcdewitt]

Thanks for your feedback!I got some traction bars to see if it will help but haven't had the time to weld them in. But I'm used to it now.its my passengers who think somethings broken

Edit: i like your truck!

 

[Gear Jammer]

i like your truck!

Thanks!

You'll have to update this once you get your traction bars installed, I've been thinking about building some for my truck, but I'm concerned it will stiffen the ride up too much.

 

[fl0w3n]

I'm running the same clutch with the same size lift and tires, mine shudders on take off also, most of the time it's not much though. If I slip the clutch some taking off it's a lot smoother, but I hate driving a manual that way.

Thanks for your feedback!I got some traction bars to see if it will help but haven't had the time to weld them in. But I'm used to it now.its my passengers who think somethings broken

Edit: i like your truck!

Dang, that's not what I wanted to hear ... I haven't finished getting mine back together yet, but my lady is already rolling her eyes at the truck and she hasn't even rid in it yet. That's not going to help my case.

 

[rickcdewitt]

Dang, that's not what I wanted to hear ... I haven't finished getting mine back together yet, but my lady is already rolling her eyes at the truck and she hasn't even rid in it yet. That's not going to help my case.

my old lady can drive it,its ok. She giggles every time she tries to get in with no side steps:thumb: think I'll keep her for a while. I just wish she wouldn't scream when the tires break loose at freeway speeds

The shudder isn't noticeable 80% of the time.